Re: Detecting IP_TOS (and IPPROTO_IP vs. SOL_IP)

[Philip A. Prindeville]

On 07/19/2010 02:41 PM, Eric Blake wrote:
> [adding gnulib]
> 
> On 07/04/2010 07:51 PM, Philip Prindeville wrote:
>>> Generally, for such issues it might be a good idea to just use gnulib if
>>> you can; but I just looked and it doesn't address this particular issue
>>> yet.
>>>
>>> Cheers,
>>> Ralf
>>>    
>>
>> Ok, slightly different issue.
>>
>> I'm trying to test for the presence/usability of <netinet/ip.h>, but on
>> certain platforms I need to include <netinet/insystm.h> first.
>>
>> configure:21873: checking netinet/ip.h usability
>> configure:21873: gcc -c -g -O2  conftest.c>&5
>> In file included from conftest.c:155:
>> /usr/include/netinet/ip.h:67: error: field `ip_src' has incomplete type
>> /usr/include/netinet/ip.h:67: error: field `ip_dst' has incomplete type
>> /usr/include/netinet/ip.h:160: error: syntax error before "n_long"
>> /usr/include/netinet/ip.h:162: error: field `ipt_addr' has incomplete type
>> /usr/include/netinet/ip.h:163: error: syntax error before "n_long"
>> /usr/include/netinet/ip.h:198: error: field `ippseudo_src' has
>> incomplete type
>> /usr/include/netinet/ip.h:199: error: field `ippseudo_dst' has
>> incomplete type
> 
> Which platform?  Again, using gnulib might be the cleanest way to not
> have to worry about this; and in the meantime, gnulib probably needs to
> be updated to deal with your particular platform with an incomplete header.

>From what I can tell (the automated build infrastructure has a few kinks, and 
>I don't always get accurate or full build logs)... both OpenBSD and Solaris 
>(or OpenSolaris).

I use autoconf in many more environments than I use gnulib.